<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xmlns:xbrli="http://www.xbrl.org/2003/instance"
           xmlns:conf="http://xbrl.org/conf"
           xmlns:link="http://www.xbrl.org/2003/linkbase"
           xmlns:xlink="http://www.w3.org/1999/xlink"
           xmlns:xs="http://www.w3.org/2001/XMLSchema"
           targetNamespace="http://xbrl.org/conf"
           elementFormDefault="qualified">
   <xs:annotation>
      <xs:appinfo>
         <link:roleType roleURI="http://www.xbrl.org/role/role" id="role">
            <link:usedOn>link:presentationLink</link:usedOn>
            <link:usedOn>link:calculationLink</link:usedOn>
            <link:usedOn>link:definitionLink</link:usedOn>
            <link:usedOn>link:labelLink</link:usedOn>
            <link:usedOn>link:referenceLink</link:usedOn>
            <link:usedOn>link:footnoteLink</link:usedOn>
            <link:usedOn>link:loc</link:usedOn>
            <link:usedOn>link:label</link:usedOn>
            <link:usedOn>link:reference</link:usedOn>
            <link:usedOn>link:footnote</link:usedOn>
         </link:roleType>
         <link:arcroleType arcroleURI="http://www.xbrl.org/arcrole/arcrole" cyclesAllowed="any"
                           id="arcrole">
            <link:usedOn>link:presentationArc</link:usedOn>
            <link:usedOn>link:calculationArc</link:usedOn>
            <link:usedOn>link:definitionArc</link:usedOn>
            <link:usedOn>link:labelArc</link:usedOn>
            <link:usedOn>link:referenceArc</link:usedOn>
            <link:usedOn>link:footnoteArc</link:usedOn>
         </link:arcroleType>
         <link:linkbase>
            <link:roleRef xlink:type="simple" xlink:href="#role" roleURI="http://www.xbrl.org/role/role"/>
            <link:roleRef xlink:type="simple" xlink:href="#role" roleURI="http://www.xbrl.org/role/role"/>
            <link:definitionLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
               <link:loc xlink:type="locator" xlink:href="#conf_source" xlink:label="source"/>
               <link:loc xlink:type="locator" xlink:href="#conf_target" xlink:label="target"/>
               <link:definitionArc xlink:type="arc" xlink:from="source" xlink:to="target"
                                   xlink:arcrole="http://www.xbrl.org/2003/arcrole/general-special"/>
            </link:definitionLink>
         </link:linkbase>
      </xs:appinfo>
   </xs:annotation>
   <xs:import namespace="http://www.xbrl.org/2003/instance"
              schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
   <xs:element name="source" id="conf_source" type="xbrli:monetaryItemType"
               substitutionGroup="xbrli:item"
               xbrli:periodType="instant"/>
   <xs:element name="target" id="conf_target" type="xbrli:monetaryItemType"
               substitutionGroup="xbrli:item"
               xbrli:periodType="instant"/>
</xs:schema>